package com.tyj.gulimall.product.service.impl;

import com.alibaba.fastjson.JSONArray;
import com.tyj.common.constant.ProductConstant;
import com.tyj.common.to.SkuReductionTo;
import com.tyj.common.to.SpuBoundTo;
import com.tyj.common.to.es.SkuEsModel;
import com.tyj.common.utils.R;
import com.tyj.gulimall.product.entity.*;
import com.tyj.gulimall.product.feign.CouponFeignService;
import com.tyj.gulimall.product.feign.SearchFeignService;
import com.tyj.gulimall.product.feign.WareFeignService;
import com.tyj.gulimall.product.service.*;
import com.tyj.gulimall.product.vo.*;
import io.seata.spring.annotation.GlobalTransactional;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.*;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.tyj.common.utils.PageUtils;
import com.tyj.common.utils.Query;
import com.tyj.gulimall.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;


@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Autowired
    SpuInfoDescService spuInfoDescService;

    @Autowired
    SpuImagesService spuImagesService;

    @Autowired
    AttrService attrService;

    @Autowired
    ProductAttrValueService productAttrValueService;

    @Autowired
    SkuInfoService skuInfoService;

    @Autowired
    SkuImagesService skuImagesService;

    @Autowired
    SkuSaleAttrValueService skuSaleAttrValueService;

    @Autowired
    CouponFeignService couponFeignService;

    @Autowired
    BrandService brandService;

    @Autowired
    CategoryService categoryService;

    @Autowired
    WareFeignService wareFeignService;

    @Autowired
    SearchFeignService searchFeignService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );

        return new PageUtils(page);
    }

    @GlobalTransactional
    @Override
    //TODO 需要添加分布式事务保证数据的一致性
    public void saveSpuInfo(SpuSaveVo vo) {
        //1 保存spu基本信息  `pms_spu_info`
        SpuInfoEntity infoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(vo, infoEntity);
        infoEntity.setCreateTime(new Date());
        infoEntity.setUpdateTime(new Date());
        this.saveBaseSpuInfo(infoEntity); //保存后会将新生产的id保存到对象里面

        //2 保存spu的描述图片  `pms_spu_info_desc`
        List<String> decript = vo.getDecript();
        SpuInfoDescEntity descEntity = new SpuInfoDescEntity();
        descEntity.setSpuId(infoEntity.getId());
        descEntity.setDecript(String.join(",", decript)); //join 将数组拼接为字符串用逗号分隔
        spuInfoDescService.saveSpuInfoDesc(descEntity);

        //3 保存spu的图片集合  `pms_spu_images`
        List<String> images = vo.getImages();
        spuImagesService.saveImages(infoEntity.getId(), images);

        //4 保存spu的规格参数  `pms_product_attr_value`
        List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream().map(item -> {
            ProductAttrValueEntity valueEntity = new ProductAttrValueEntity();
            valueEntity.setAttrId(item.getAttrId());
            //通过属性id 查找属性名
            AttrEntity attrEntity = attrService.getById(item.getAttrId());
            valueEntity.setAttrName(attrEntity.getAttrName());
            valueEntity.setAttrValue(item.getAttrValues());
            valueEntity.setQuickShow(item.getShowDesc());
            valueEntity.setSpuId(infoEntity.getId());
            return valueEntity;
        }).collect(Collectors.toList());
        productAttrValueService.saveProductAttr(collect);

        //5 保存spu的积分信息  `sms_spu_bounds`
        Bounds bounds = vo.getBounds();
        SpuBoundTo spuBoundTo = new SpuBoundTo();
        BeanUtils.copyProperties(bounds, spuBoundTo);
        spuBoundTo.setSpuId(infoEntity.getId());
        R r = couponFeignService.saveSpuBounds(spuBoundTo);
        if (r.getCode() != 0) {
            log.error("远程保存spu积分信息失败");
        }

        //6 保存当前spu对应的所有sku信息
        //6.1 保存sku基本参数信息  `pms_sku_info`
        List<Skus> skus = vo.getSkus();
        if (skus != null && skus.size() > 0) {
            skus.forEach(item -> {
                String defaultImg = "";
                for (Images image : item.getImages()) {
                    if (image.getDefaultImg() == 1) {
                        defaultImg = image.getImgUrl();
                    }
                }
                SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(item, skuInfoEntity);
                skuInfoEntity.setBrandId(infoEntity.getBrandId());
                skuInfoEntity.setCatalogId(infoEntity.getCatalogId());
                skuInfoEntity.setSaleCount(0L);
                skuInfoEntity.setSpuId(infoEntity.getId());
                skuInfoEntity.setSkuDefaultImg(defaultImg);
                skuInfoService.saveSkuInfo(skuInfoEntity); //保存后id就生产了

                //6.2 保存sku的图片信息  `pms_sku_images`
                Long skuId = skuInfoEntity.getSkuId();
                List<SkuImagesEntity> imagesEntities = item.getImages().stream().map(img -> {
                    SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                    skuImagesEntity.setSkuId(skuId);
                    skuImagesEntity.setImgUrl(img.getImgUrl());
                    skuImagesEntity.setDefaultImg(img.getDefaultImg());
                    return skuImagesEntity;
                }).filter(entity -> {
                    //返回true需要,返回false过滤掉
                    return !StringUtils.isEmpty(entity.getImgUrl());
                }).collect(Collectors.toList());
                skuImagesService.saveImages(imagesEntities);

                //6.3 保存sku的销售属性信息  `pms_sku_sale_attr_value`
                List<SkuSaleAttrValueEntity> skuSaleAttrValueEntities = item.getAttr().stream().map(a -> {
                    SkuSaleAttrValueEntity skuSaleAttrValueEntity = new SkuSaleAttrValueEntity();
                    BeanUtils.copyProperties(a, skuSaleAttrValueEntity);
                    skuSaleAttrValueEntity.setSkuId(skuId);
                    return skuSaleAttrValueEntity;
                }).collect(Collectors.toList());
                skuSaleAttrValueService.saveBatch(skuSaleAttrValueEntities);

                //6.4 保存sku的优惠满减信息  `sms_sku_ladder` / `sms_sku_full_reduction` /`sms_member_price`
                SkuReductionTo skuReductionTo = new SkuReductionTo();
                BeanUtils.copyProperties(item, skuReductionTo);
                skuReductionTo.setSkuId(skuId);
                if (skuReductionTo.getFullCount() > 0 || skuReductionTo.getFullPrice().compareTo(new BigDecimal("0")) == 1) {
                    R r1 = couponFeignService.saveSkuReduction(skuReductionTo);
                    if (r1.getCode() != 0) {
                        log.error("远程保存sku优惠信息失败");
                    }
                }

            });
        }


    }

    @Override
    public void saveBaseSpuInfo(SpuInfoEntity infoEntity) {
        this.baseMapper.insert(infoEntity);
    }

    @Override
    public PageUtils queryByCondition(Map<String, Object> params) {
        QueryWrapper<SpuInfoEntity> wrapper = new QueryWrapper<>();
        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key) && !"0".equals(key)) {
            wrapper.and(w -> {
                w.eq("id", key).or().like("spu_name", key);
            });
        }
        String status = (String) params.get("status");
        if (!StringUtils.isEmpty(status) && !"0".equals(status)) {
            wrapper.eq("publish_status", status);
        }
        String brandId = (String) params.get("brandId");
        if (!StringUtils.isEmpty(brandId) && !"0".equals(brandId)) {

            wrapper.eq("brand_id", brandId);

        }
        String catelogId = (String) params.get("catelogId");
        if (!StringUtils.isEmpty(catelogId) && !"0".equals(catelogId)) {
            wrapper.eq("catalog_id", catelogId);

        }
        IPage<SpuInfoEntity> page = this.page(new Query<SpuInfoEntity>().getPage(params), wrapper);
        return new PageUtils(page);
    }


    @Override
    public void spuUp(Long spuId) {
        //根据spuid找到sku要上架的商品
        List<SkuInfoEntity> entities = skuInfoService.getSkuInfoBySpuId(spuId);
        List<Long> skuIdList = entities.stream().map(item -> {
            return item.getSkuId();
        }).collect(Collectors.toList());

        //查询spu的所有属性
        List<ProductAttrValueEntity> baseAttrs = productAttrValueService.listForSpu(spuId);
        List<Long> attrIds = baseAttrs.stream().map(attr -> {
            return attr.getAttrId();
        }).collect(Collectors.toList());
        // 判断该属性是否是检索属性 search_type=1
        List<Long> searchAttrIds = attrService.selectSearchAttrIds(attrIds);
        Set<Long> idSet = new HashSet<>(searchAttrIds);
        //筛选正确的检索属性
        List<SkuEsModel.Attr> attrsList = baseAttrs.stream().filter(item -> {
            return idSet.contains(item.getAttrId());
        }).map(item -> {
            SkuEsModel.Attr attr = new SkuEsModel.Attr();
            BeanUtils.copyProperties(item, attr);
            return attr;
        }).collect(Collectors.toList());

        //远程调用查看是否有库存
        Map<Long, Boolean> stockMap = null;
        try {
            List<SkuHasStockVo> skuHasStock = wareFeignService.getSkuHasStock(skuIdList);
            System.out.println(skuHasStock);
            stockMap =skuHasStock.stream().collect(
                    Collectors.toMap(SkuHasStockVo::getSkuId, item -> item.getHasStock()
                    ));
        } catch (Exception e) {
            log.error("库存服务查询异常{}", e);
        }

        Map<Long, Boolean> finalStockMap = stockMap;
        List<SkuEsModel> upProducts = entities.stream().map(sku -> {
            SkuEsModel esModel = new SkuEsModel();
            BeanUtils.copyProperties(sku, esModel);
            esModel.setSkuPrice(sku.getPrice());
            esModel.setSkuImg(sku.getSkuDefaultImg());
            if (finalStockMap == null) {
                esModel.setHasStock(true);
            } else {
                esModel.setHasStock(finalStockMap.get(sku.getSkuId()));
            }
            //设置品牌
            esModel.setHotScore(0L);
            BrandEntity brand = brandService.getById(sku.getBrandId());
            esModel.setBrandName(brand.getName());
            esModel.setBrandImg(brand.getLogo());
            CategoryEntity category = categoryService.getById(esModel.getCatalogId());
            esModel.setCatalogName(category.getName());
            esModel.setAttrs(attrsList);
            return esModel;
        }).collect(Collectors.toList());

        //将所有收集到的数据发送给es进行保存
        R r = searchFeignService.productStatusUp(upProducts);
        if (r.getCode() == 0) {
            //远程调用成功 修改spu的状态
            baseMapper.updateSpuStatus(spuId, ProductConstant.ProductUpStatusEnum.SPU_UP.getCode());
        } else {
            //远程调用失败
            //TODO 重复调用问题？接口幂等性
        }

    }

    @Override
    public SpuInfoEntity getSpuBySkuId(Long skuId) {
        SkuInfoEntity skuInfoEntity = skuInfoService.getById(skuId);
        SpuInfoEntity spu = this.getById(skuInfoEntity.getSpuId());
        BrandEntity brandEntity = brandService.getById(spu.getBrandId());
        spu.setBrandName(brandEntity.getName());
        return spu;
    }


}